The next morning, Lei Cheng pushed open the secret chamber door.
The moment he looked up, he met a pair of bloodshot eyes in the pitch-black chamber.
Even with Lei Cheng's normally steady temperament, his heart skipped a beat in fright.
Only after seeing who it was did Lei Cheng let out a long breath. "Mr. Gongsun? What are you..."
"There's something wrong with this drum!" Chen Mu rubbed his rather dry eyes, his expression grave.
After returning last night, the more he thought about it, the more something felt off.
He had returned to the secret chamber overnight and spent the entire night tapping and listening to every inch of the brand-new Kui Niu Drum.
After a whole night of work, he had finally detected an unusual sound using the True Hearing Technique.
"Compared to the original Kui Niu Drum, there's something extra inside this one." He looked solemnly at Lei Cheng.
"Could it be some hidden part of the Kui Niu Magic Restriction?" Lei Cheng asked tentatively.
"Impossible!" Chen Mu shook his head with certainty.
He did not know the Kui Niu Magic Restriction, but he was proficient in the construction methods of Water Repelling Shuttles and knew every other prohibition on them.
The Kui Niu Magic Restriction existed to activate those prohibitions.
As long as he reverse-engineered it, he could determine the function of every spell talisman in the Kui Niu Magic Restriction.
The extra thing had nothing to do with the Water Repelling Shuttle's prohibitions. It could not possibly be part of the Kui Niu Magic Restriction.
"Besides, this isn't some prohibition spell talisman. It's Innate Body-Protecting Qi with faint traces of life's rhythm."
"Most importantly, this isn't the first time we've encountered it." Chen Mu's face was grim.
"Do you remember those inexplicably appearing undercurrents